diff --git a/src/main/thrift/parquet.thrift b/src/main/thrift/parquet.thrift
index 010c24caf..87fb81c9a 100644
--- a/src/main/thrift/parquet.thrift
+++ b/src/main/thrift/parquet.thrift
@@ -723,6 +723,13 @@ struct RowGroup {
    * The sorting columns can be a subset of all the columns.
    */
   4: optional list<SortingColumn> sorting_columns
+
+  /** Byte offset from beginning of file to first page (data or dictionary)
+   * in this row group **/
+  5: optional i64 file_offset
+
+  /** Total byte size of all compressed column data in this row group **/
+  6: optional i64 total_compressed_size
 }
 
 /** Empty struct to signal the order defined by the physical or logical type */